Ransomware Series: Multi-Technique Microsoft Defender Tampering Before Encryption

Ibrahim Saud@tektrix

•updated 11 days ago•1•0•2

Detects multiple methods of tampering with Windows Defender security controls within a short time window. This includes PowerShell commands to modify Defender preferences (e.g., disabling Real-time Monitoring or adding exclusions), modifications to Defender-related registry keys, and attempts to stop or disable the WinDefend service.